How many kilowatts does a light have?

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Discussion Overview

The discussion revolves around the power ratings of light bulbs, specifically how many kilowatts they consume, and the historical context of the invention of the lightning conductor.

Discussion Character

  • Technical explanation
  • Conceptual clarification

Main Points Raised

  • One participant asks about the kilowatt rating of a light, which is interpreted as a request for clarification on electric light bulbs.
  • Another participant suggests checking the bulb for its wattage, providing an example of a 60W lamp, which equates to 0.060kW.
  • It is noted that lamps can have a wide range of power ratings, depending on their resistance and the voltage applied, with different types of bulbs (e.g., flashlight bulbs, search lights) having varying power ratings.
  • A participant mentions that compact fluorescent bulbs typically consume about 10-20W and are more efficient than incandescent bulbs, which range from 40-100W, while acknowledging that bulbs can vary from a few milliwatts to several thousand watts.
  • For the question about the lightning conductor, one participant suggests searching online for information, while another states that Ben Franklin invented the lightning rod in 1752.

Areas of Agreement / Disagreement

There is no consensus on the specific kilowatt rating of light bulbs, as participants highlight the variability in power ratings. The historical question about the lightning conductor has a more definitive response regarding Ben Franklin's contribution, but the discussion does not explore further details or alternative views.

Contextual Notes

The initial question about kilowatts is vague and lacks specificity regarding the type of light being referenced. The discussion does not resolve the broader implications of power ratings across different types of lighting.

pedram
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hi
i want to know how many kilowatts does a light have? & i want to know who invented lightning conductor?

please answer it sooooooon!
or email it to:

pedramlolo@hotmail.com

pedram_atb87@yahoo.com

bye
 
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Originally posted by pedram
hi
i want to know how many kilowatts does a light have? & i want to know who invented lightning conductor?

please answer it sooooooon!
or email it to:

pedramlolo@hotmail.com

pedram_atb87@yahoo.com

bye

Your first question is very poorly worded. What exactly do you mean? If you mean an electric light, look at the bulb and it will tell you. My lamp at the side of me now is 60W ie 0.060kW.

regards lightning conductor - do a search on Google.
 
Lamps can have just about any power ratings -- the power dissipated by the lamp depends upon its resistance and the voltage applied to it. Flashlight bulbs and search lights are very different in their power ratings.

- Warren
 
Compact flourescent light bulbs generally consume about 10-20W at about 5x the efficiency of an incadescent. Regular incadescents come in 40-100w versions. Though like chroot said, light bulbs come in all sizes - down to a few miliwatts and up to a few thousand watts.

For the second part, do a google search for Thomas Edison.
 
Ben Franklin invented the Lightning Rod, or Lightning Conductor in 1752.
 

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